I don\'t know what caused Visual Studio to start thinking it needs to publish my project, but now whenever I build it, I get several \"Unable to apply publish properties for
In Project Properties > Publish > Application Files...
If you click "Show All" you will see that some items have a yellow exclamation mark indicating that those files are no longer referenced. Just delete these entries.
Open your project, select Project Properties->Publish(ing)->Application Files and click the reset all button. Does that help?